For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningAdditional Maintenance and Care
Your vehicle is an important investment and caring for it properly may help to
avoid future costly repairs. To maintain vehicle performance, additional maintenance
services may be required. It is recommended that your dealer perform these services
— their trained dealer technicians know your v ...
Front Seat Track Synchronization
The fore/aft manual adjuster is composed of an inboard track assembly (5),
and outboard track (4) assembly, and an adjuster handle (1).
Each track assembly is made of an upper track (2) and a lower track (3). Both
tracks need to be aligned prior to installing in the vehicle.
To align t ...
Rear Side Door Wiring Harness Replacement
Preliminary Procedure
Remove the rear side door inner panel trim. Refer to Rear Side Door Trim
Replacement.
Rear Side Door Wiring Harness
Warning: Unless directed otherwise, the ignition and start switch must be
in the OFF or LOCK position, and all electrical
loads must be OFF befor ...